Hi,
Try this
If u lose your mobile in India, you can get it back
Got an interesting fact to share... Nowadays each one of us carries Hi-Fi Mobile devices and always fears that it may be stolen.
Each mobile carries a unique IMEI i.e. International Mobile Identity Number which can be used to track your mobile anywhere in the world.
This is how it works!!!!!!
1. Dial *#06# from your mobile.
2. Your mobile shows a unique 15 digit.
3. Note down this no anywhere but except your mobile as this is the no which will help trace your mobile in case of a theft.
4. Once stolen you just have to mail this 15 digit IMEI no. tocop@vsnl.net
5. No need to go to police.
6. Your Mobile will be traced within next 24 hrs via a complex system of GPRS and internet.
7. You will find where your hand set is being operated even in case your no is being changed.
PASS ON THIS VERY IMP MESSAGE TO ALL YOUR FRIENDS AND RELATIVES.
send an e-mail to cop@vsnl.net with the following info..
Your name:
Address:
Phone model:
Make:
Last used No.:
E-mail for communication:
Missed date:
IMEI No.:
Share it
Search This Blog
3/11/2010
QUICK TIPS FOR UR PC .
CHANGE SETTINGS TO OPEN A LINK IN A SEPARATE WINDOW
------------------------------------------------------------------------------
IN INTERNET EXPLORER ,GO TO EXTRAS |INTERNET OPTIONS AND SELECT THE ADVANCED TAB HERE. UN CHECK THE OPTION "OPEN LINKS IN THE SAME WINDOW"
MINIMIZE THE RIBBON BAR
----------------------------------
TO MINIMIZE THE RIBBON BTOAR IN OFFICE 2007.EITHER PRESS [CTRL]+[F1] OR DOUBLE CLICK ON THE CURRENTLY ACTIVE MENU TAB.
DISPLAY FORMATTING MARKS
---------------------------------------
QUICKLY SWITCH ON/OFF THE FORMATTING MARKS BY PRESSING [CTRL]+[SHIFT]+[+],TO HELP YOU BETTER RECOGNIZE THE CHANGES IN A PARAGRAPH
SUPPRESS NULL/ZERO VALUES
-------------------------------------
IN EXCEL 2003 GO TO TOOLS |OPTIONS,AND SELECT THE VIEW TAB. HERE ,IN THE WINDOWS OPTIONS .SELECTION UN CHECK NULL VALUE
------------------------------------------------------------------------------
IN INTERNET EXPLORER ,GO TO EXTRAS |INTERNET OPTIONS AND SELECT THE ADVANCED TAB HERE. UN CHECK THE OPTION "OPEN LINKS IN THE SAME WINDOW"
MINIMIZE THE RIBBON BAR
----------------------------------
TO MINIMIZE THE RIBBON BTOAR IN OFFICE 2007.EITHER PRESS [CTRL]+[F1] OR DOUBLE CLICK ON THE CURRENTLY ACTIVE MENU TAB.
DISPLAY FORMATTING MARKS
---------------------------------------
QUICKLY SWITCH ON/OFF THE FORMATTING MARKS BY PRESSING [CTRL]+[SHIFT]+[+],TO HELP YOU BETTER RECOGNIZE THE CHANGES IN A PARAGRAPH
SUPPRESS NULL/ZERO VALUES
-------------------------------------
IN EXCEL 2003 GO TO TOOLS |OPTIONS,AND SELECT THE VIEW TAB. HERE ,IN THE WINDOWS OPTIONS .SELECTION UN CHECK NULL VALUE
QUICK TIPS FOR UR PC
OPERATING CALCULATOR
---------------------------------
PRESS[P]ON THE KEY BOARD GIVES YOU THE VALUE OF PL.YOU CAN CALCULATE THE SQUARE ROOT OF A NUMBER WITH[@]AND THE SQUARE OF THE ENTERED NUMBER WITH[*]+[ENTER]
STARTING THE EXPLORER WITH A TARGET
----------------------------------------------------
SUPPLEMENT THE 'EXPLORER.EXE' CALLED BY THE '/E,D:\DATA' START PARAMETER SO THAT EXPLORER DISPLAYS THIS DIRECTORY ONLY
WINDOWS 7 SYSTEM REPAIRS
--------------------------------------
OPEN 'SYSTEM AND SECURITY' AND 'CREATE BACKUP OF THE COMPUTER' IN THE CONTROL PANEL FOR 'CREATING THE SYSTEM REPAIR DRIVE'.
GETTING THE SIDE BAR TO THE FRONT
------------------------------------------------
A SIDE BAR CONFIGURED FOR THE BACKGROUND AND ONE WHICH IS HIDDEN CAN BE BROUGHT BACK TO THE FOREGROUND IN VISTA EASILY WITH [WINDOWS ]+[SPACE].
OPENING THE SCREEN MAGNIFIER QUICKLY
-------------------------------------------------------
USE THE 'MAGNIFY'COMMAND IN THE SEARCH FIELD OF THE START MENU OR IN THE 'RUN'LINE FOR CALLING THE SCREEN MAGNIFIER DIRECTLY
2/01/2010
Virus Science
Adware
Adware is software that presents banner ads or in pop-up windows through a bar that appears on a computer screen. Those advertising spots usually can't be removed and are consequently always visible. The connection data allow many conclusions on the usage behavior and are problematic in terms of data security.
Backdoors
A backdoor can gain access to a computer by going around the computer access security mechanisms.
A program that is being executed in the background generally enables the attacker almost unlimited rights. User's personal data can be spied with the backdoor's help, but are mainly used to install further computer viruses or worms on the relevant system.
Boot viruses
The boot or master boot sector of hard drives is mainly infected by boot sector viruses. They overwrite important information necessary for the system execution. One of the awkward consequences: the computer system cannot be loaded any more…
Bot-Net
A Bot-Net is collection of softwarre bots, which run autonomously. A Bot-Net can comprise a collection of cracked machines running programs (usually referred to as worms, Trojans) under a common command and control infrastructure. Boot-Nets server various purposes, including Denial-of-service attacks, etc., partly without the affected PC user's knowledge. The main potential of Bot-Nets is that the networks can achieve dimensions on thousands of computers and its bandwidth sum bursts most conventional Internet accesses.
Dialer
A dialer is a computer programm that establishes a connection to the Internet or to another computer network through the telephone line or the digital ISDN network. Fraudsters use dialers to charge users high rates when dialing up to the Internet without their knowledge.
EICAR test file
The EICAR test file is a test pattern that was developed at the European Institute for Computer Antivirus Research for the purpose to test the functions of anti-virus programs. It is a text file which is 68 characters long and its file extension is “.COM” all virus scanners should recognize as virus.
Exploit
An exploit (security gap) is a computer program or script that takes advantage of a bug, glitch or vulnerability leading to privilege escalation or denial of service on a computer system. A form of an exploit for example are attacks from the Internet with the help of manipulated data packages. Programs can be infiltrated in order to obtain higher access.
Grayware
Grayware operates in a way similar to malware, but it is not spread to harm the users directly. It does not affect the system functionality as such. Mostly, information on the patterns of use is collected in order to either sell these data or to place advertisements systematically.
Hoaxes
The users have obtained virus alerts from the Internet for a few years and alerts against viruses in other networks that are supposed to spread via email. These alerts are spread per email with the request that they should be sent to the highest possible number of colleagues and to other users, in order to warn everyone against the "danger".
Honeypot
A honeypot is a service (program or server), which is installed in a network.
It has the function to monitor a network and to protocol attacks. This service is unknown to the legitime user - because of this reason he is never addressed. If an attacker examines a network for the weak points and uses the services which are offered by a Honeypot, it is protocolled and an alert sets off.
Keystroke logging
Keystroke logging is a diagnostic tool used in software development that captures the user's keystrokes. It can be useful to determine sources of error in computer systems and is sometimes used to measure employee productivity on certain clerical tasks. Like this, confidential and personal data, such as passwords or PINs, can be spied and sent to other computers via the Internet.
Macro viruses
Macro viruses are small programs that are written in the macro language of an application (e.g. WordBasic under WinWord 6.0) and that can normally only spread within documents of this application. Because of this, they are also called document viruses. In order to be active, they need that the corresponding applications are activated and that one of the infected macros has been executed. Unlike "normal" viruses, macro viruses do consequently not attack executable files but they do attack the documents of the corresponding host-application.
Polymorph viruses
Polymorph viruses are the real masters of disguise. They change their own programming codes - and are therefore very hard to detect.
Program viruses
A computer virus is a program that is capable to attach itself to other programs after being executed and cause an infection. Viruses multiply themselves unlike logic bombs and Trojans. In contrast to a worm, a virus always requires a program as host, where the virus deposits his virulent code. The program execution of the host itself is not changed as a rule.
Script viruses and worms
Such viruses are extremely easy to program and they can spread - if the required technology is on hand - within a few hours via email round the globe.
Script viruses and worms use a script language such as Javascript, VBScript etc. to infiltrate in other new scripts or to spread by activation of operating system functions. This frequently happens via email or through the exchange of files (documents).
A worm is a program that multiplies itself but that does not infect the host. Worms can consequently not form part of other program sequences. Worms are often the only possibility to infiltrate any kind of damaging programs on systems with restrictive security measures.
Spyware
Spyware are so called spy programs that intercept or take partial control of a computer's operation without the user's informed consent. Spyware is designed to expolit infected computers for commerical gain. Typical tactics furthering this goal include delivery of unsolicited pop-up advertisements. AntiVir is able to detect this kind of software with the category "ADSPY" or "adware-spyware".
Trojan horses (short Trojans)
Trojans are pretty common nowadays. We are talking about programs that pretend to have a particular function, but that show their real image after execution and carry out a different function that, in most cases, is destructive. Trojan horses cannot multiply themselves, which differenciates them from viruses and worms. Most of them have an interesting name (SEX.EXE or STARTME.EXE) with the intention to induce the user to start the Trojan. Immediately after execution they become active and can, for example, format the hard drive. A dropper is a special form of Trojan that 'drops' viruses, i.e. embeds viruses on the computer system.
Zombie
A Zombie-PC is a computer that is infected with malware programs and that enables hackers to abuse computers via remote control for criminal purposes. The affected PC, for example, can start Denial-of-Service- (DoS) attacks at command or send spam and phishing emails.
Adware is software that presents banner ads or in pop-up windows through a bar that appears on a computer screen. Those advertising spots usually can't be removed and are consequently always visible. The connection data allow many conclusions on the usage behavior and are problematic in terms of data security.
Backdoors
A backdoor can gain access to a computer by going around the computer access security mechanisms.
A program that is being executed in the background generally enables the attacker almost unlimited rights. User's personal data can be spied with the backdoor's help, but are mainly used to install further computer viruses or worms on the relevant system.
Boot viruses
The boot or master boot sector of hard drives is mainly infected by boot sector viruses. They overwrite important information necessary for the system execution. One of the awkward consequences: the computer system cannot be loaded any more…
Bot-Net
A Bot-Net is collection of softwarre bots, which run autonomously. A Bot-Net can comprise a collection of cracked machines running programs (usually referred to as worms, Trojans) under a common command and control infrastructure. Boot-Nets server various purposes, including Denial-of-service attacks, etc., partly without the affected PC user's knowledge. The main potential of Bot-Nets is that the networks can achieve dimensions on thousands of computers and its bandwidth sum bursts most conventional Internet accesses.
Dialer
A dialer is a computer programm that establishes a connection to the Internet or to another computer network through the telephone line or the digital ISDN network. Fraudsters use dialers to charge users high rates when dialing up to the Internet without their knowledge.
EICAR test file
The EICAR test file is a test pattern that was developed at the European Institute for Computer Antivirus Research for the purpose to test the functions of anti-virus programs. It is a text file which is 68 characters long and its file extension is “.COM” all virus scanners should recognize as virus.
Exploit
An exploit (security gap) is a computer program or script that takes advantage of a bug, glitch or vulnerability leading to privilege escalation or denial of service on a computer system. A form of an exploit for example are attacks from the Internet with the help of manipulated data packages. Programs can be infiltrated in order to obtain higher access.
Grayware
Grayware operates in a way similar to malware, but it is not spread to harm the users directly. It does not affect the system functionality as such. Mostly, information on the patterns of use is collected in order to either sell these data or to place advertisements systematically.
Hoaxes
The users have obtained virus alerts from the Internet for a few years and alerts against viruses in other networks that are supposed to spread via email. These alerts are spread per email with the request that they should be sent to the highest possible number of colleagues and to other users, in order to warn everyone against the "danger".
Honeypot
A honeypot is a service (program or server), which is installed in a network.
It has the function to monitor a network and to protocol attacks. This service is unknown to the legitime user - because of this reason he is never addressed. If an attacker examines a network for the weak points and uses the services which are offered by a Honeypot, it is protocolled and an alert sets off.
Keystroke logging
Keystroke logging is a diagnostic tool used in software development that captures the user's keystrokes. It can be useful to determine sources of error in computer systems and is sometimes used to measure employee productivity on certain clerical tasks. Like this, confidential and personal data, such as passwords or PINs, can be spied and sent to other computers via the Internet.
Macro viruses
Macro viruses are small programs that are written in the macro language of an application (e.g. WordBasic under WinWord 6.0) and that can normally only spread within documents of this application. Because of this, they are also called document viruses. In order to be active, they need that the corresponding applications are activated and that one of the infected macros has been executed. Unlike "normal" viruses, macro viruses do consequently not attack executable files but they do attack the documents of the corresponding host-application.
Polymorph viruses
Polymorph viruses are the real masters of disguise. They change their own programming codes - and are therefore very hard to detect.
Program viruses
A computer virus is a program that is capable to attach itself to other programs after being executed and cause an infection. Viruses multiply themselves unlike logic bombs and Trojans. In contrast to a worm, a virus always requires a program as host, where the virus deposits his virulent code. The program execution of the host itself is not changed as a rule.
Script viruses and worms
Such viruses are extremely easy to program and they can spread - if the required technology is on hand - within a few hours via email round the globe.
Script viruses and worms use a script language such as Javascript, VBScript etc. to infiltrate in other new scripts or to spread by activation of operating system functions. This frequently happens via email or through the exchange of files (documents).
A worm is a program that multiplies itself but that does not infect the host. Worms can consequently not form part of other program sequences. Worms are often the only possibility to infiltrate any kind of damaging programs on systems with restrictive security measures.
Spyware
Spyware are so called spy programs that intercept or take partial control of a computer's operation without the user's informed consent. Spyware is designed to expolit infected computers for commerical gain. Typical tactics furthering this goal include delivery of unsolicited pop-up advertisements. AntiVir is able to detect this kind of software with the category "ADSPY" or "adware-spyware".
Trojan horses (short Trojans)
Trojans are pretty common nowadays. We are talking about programs that pretend to have a particular function, but that show their real image after execution and carry out a different function that, in most cases, is destructive. Trojan horses cannot multiply themselves, which differenciates them from viruses and worms. Most of them have an interesting name (SEX.EXE or STARTME.EXE) with the intention to induce the user to start the Trojan. Immediately after execution they become active and can, for example, format the hard drive. A dropper is a special form of Trojan that 'drops' viruses, i.e. embeds viruses on the computer system.
Zombie
A Zombie-PC is a computer that is infected with malware programs and that enables hackers to abuse computers via remote control for criminal purposes. The affected PC, for example, can start Denial-of-Service- (DoS) attacks at command or send spam and phishing emails.
1/25/2010
Global Positioning System
GPS stands for Global Positioning System. GPS uses satellite technology to enable a terrestrial terminal to determine its position on the Earth in latitude and longitude.
Navigation Using GPS
GPS receivers ascertain their position and height by measuring the signals from three or more satellites simultaneously and determining their position using the timing of these signals.
GPS operates using trilateration. Trilateration is the process of determining the position of an unknown point by measuring the lengths of the sides of an imaginary triangle between the unknown point and two or more known points.
In the GPS system, the two known points are provided by two GPS satellites. These satellites constantly transmit an identifying signal.
The GPS receiver measures the distance to each GPS satellite by measuring the time each signal took to travel between the GPS satellite and the GPS receiver.
The formula for this is:
Distance = Velocity * Time
Velocity of the GPS signal is the speed of light, approximately 300,000 Km/s.
GPS transmissions occur on two frequencies: 1575.42 and 1227.60 Mhz. Both of these frequencies are within the L Band.
GPS History
GPS was originally developed for the U.S. military, but is now provided as a public service for people all over the world by the U.S. government.
Deployment of the GPS system began on 22 February 1978 with the launch of the first Block I Navstar GPS satellite. Initial Operating Capability was declared in December 1993 with 24 operational GPS satellites in orbit. Full Operational Capability was declared in June of 1995.
GPS was developed by the U.S. military to help soldiers locate their positions. Civilian access to the GPS system was guaranteed by President Reagan as a response to the Soviet Union's shooting down of Korean Airline Flight KAL-007. President Reagan hoped that GPS technology would help to prevent such a tragedy from happening again.
GPS Architecture
The GPS system is divided into three segments:
The Space Segment
The Control Segment
The User Segment
The Space Segment
GPS uses more than two dozen operational satellites, with an additional three satellites in orbit as redundant backup.
GPS uses NAVSTAR satellites manufactured by Rockwell International. Each NAVSTAR satellite is approximately 5 meters wide (with solar panels extended) and weighs approximately 900Kg.
GPS satellites orbit the earth at an altitude of approximately 20,200Km.
Each GPS satellite has an orbital period of 11 hours and 58 minutes. This means that each GPS satellite orbits the Earth twice each day. Highly accurate atomic clocks are installed on these satellites, operating at a fundamental frequency of 10.23MHz each. With the help of these clocks, signals are generated from the satellite, to be broadcast to the Earth.
These twenty-four satellites orbit in six orbital planes, or paths. This means that four GPS satellites operate in each orbital plane.
Each of these six orbital planes is spaced sixty degrees apart. All of these orbital planes are inclined fifty-five degrees from the Equator.
The Control Segment
The Control Segment is comprised of a master control station, 5 monitor stations and 4 ground antennas. All of these are strategically located along the Equator.
The Master Control Station (MCS) of the GPS system is operated at Schriever Air Force Base in Colorado Springs, Colorado. The United States Air Force maintains redundant Master Control Stations in Rockville, Maryland and Sunnyvale, California.
The Air Force also maintains monitoring stations in Colorado Springs, Hawaii, The Ascension Islands, Diego Garcia, and Kwajalein.
Key Functions of the Control Segment
The Control Segment keeps track of the orbiting position of the GPS satellites, calibrating and synchronizing their clocks.
It also predicts the path of each satellite for the following 24 hours, and uploads this information to each satellite.
Communications with the space segment are conducted through ground antennas in the Ascension Islands, Diego Garcia, and Kwajalein. The satellite signals are read here and the measurements sent to the Master Control Station in Colorado. The signals are processed there to determine any errors, and sent back to the four monitor stations with ground antennas, after which the information is uploaded back to the satellites.
The User Segment
The GPS user segment is constituted by a GPS receiver, with the help of which the user can determine his/her location.
Navigation Using GPS
GPS receivers ascertain their position and height by measuring the signals from three or more satellites simultaneously and determining their position using the timing of these signals.
GPS operates using trilateration. Trilateration is the process of determining the position of an unknown point by measuring the lengths of the sides of an imaginary triangle between the unknown point and two or more known points.
In the GPS system, the two known points are provided by two GPS satellites. These satellites constantly transmit an identifying signal.
The GPS receiver measures the distance to each GPS satellite by measuring the time each signal took to travel between the GPS satellite and the GPS receiver.
The formula for this is:
Distance = Velocity * Time
Velocity of the GPS signal is the speed of light, approximately 300,000 Km/s.
GPS transmissions occur on two frequencies: 1575.42 and 1227.60 Mhz. Both of these frequencies are within the L Band.
GPS History
GPS was originally developed for the U.S. military, but is now provided as a public service for people all over the world by the U.S. government.
Deployment of the GPS system began on 22 February 1978 with the launch of the first Block I Navstar GPS satellite. Initial Operating Capability was declared in December 1993 with 24 operational GPS satellites in orbit. Full Operational Capability was declared in June of 1995.
GPS was developed by the U.S. military to help soldiers locate their positions. Civilian access to the GPS system was guaranteed by President Reagan as a response to the Soviet Union's shooting down of Korean Airline Flight KAL-007. President Reagan hoped that GPS technology would help to prevent such a tragedy from happening again.
GPS Architecture
The GPS system is divided into three segments:
The Space Segment
The Control Segment
The User Segment
The Space Segment
GPS uses more than two dozen operational satellites, with an additional three satellites in orbit as redundant backup.
GPS uses NAVSTAR satellites manufactured by Rockwell International. Each NAVSTAR satellite is approximately 5 meters wide (with solar panels extended) and weighs approximately 900Kg.
GPS satellites orbit the earth at an altitude of approximately 20,200Km.
Each GPS satellite has an orbital period of 11 hours and 58 minutes. This means that each GPS satellite orbits the Earth twice each day. Highly accurate atomic clocks are installed on these satellites, operating at a fundamental frequency of 10.23MHz each. With the help of these clocks, signals are generated from the satellite, to be broadcast to the Earth.
These twenty-four satellites orbit in six orbital planes, or paths. This means that four GPS satellites operate in each orbital plane.
Each of these six orbital planes is spaced sixty degrees apart. All of these orbital planes are inclined fifty-five degrees from the Equator.
The Control Segment
The Control Segment is comprised of a master control station, 5 monitor stations and 4 ground antennas. All of these are strategically located along the Equator.
The Master Control Station (MCS) of the GPS system is operated at Schriever Air Force Base in Colorado Springs, Colorado. The United States Air Force maintains redundant Master Control Stations in Rockville, Maryland and Sunnyvale, California.
The Air Force also maintains monitoring stations in Colorado Springs, Hawaii, The Ascension Islands, Diego Garcia, and Kwajalein.
Key Functions of the Control Segment
The Control Segment keeps track of the orbiting position of the GPS satellites, calibrating and synchronizing their clocks.
It also predicts the path of each satellite for the following 24 hours, and uploads this information to each satellite.
Communications with the space segment are conducted through ground antennas in the Ascension Islands, Diego Garcia, and Kwajalein. The satellite signals are read here and the measurements sent to the Master Control Station in Colorado. The signals are processed there to determine any errors, and sent back to the four monitor stations with ground antennas, after which the information is uploaded back to the satellites.
The User Segment
The GPS user segment is constituted by a GPS receiver, with the help of which the user can determine his/her location.
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